Common Techniques for Register Manipulation in C Language

Common Techniques for Register Manipulation in C Language

When assigning values to registers using the C language, bit manipulation techniques in C are often required.C language bit manipulation methods. Clearing a specific bit in a register Assuming ‘a’ represents the register, which already has a value. If we want to clear a specific bit while keeping other bits unchanged, the code is as … Read more

C Language: Bit Manipulation and Registers

C Language: Bit Manipulation and Registers

Bit Manipulation Operators The bit manipulation operators in C language include bitwise AND (&), bitwise OR (|), bitwise XOR (^), bitwise NOT (~), left shift (<<), and right shift (>>). Bitwise AND (&): The result bit is 1 only when both corresponding binary bits of the operands are 1; otherwise, it is 0. For example, … Read more

How to Achieve Byte High-Low Bit Swapping in Embedded Programming?

How to Achieve Byte High-Low Bit Swapping in Embedded Programming?

Follow+Star Public Account, don’t miss out on exciting content Source | Technology Makes Dreams Greater Recently, I encountered the issue of byte high-low bit conversion in a protocol, so I lazily searched online and found a similar problem, and learned a new term called butterfly swapping. The protocol requires that the low byte is on … Read more

C Algorithm 04: Searching Massive Data

C Algorithm 04: Searching Massive Data

【Problem】Given 4 billion unique unsigned int integers that are not sorted. Given a number, how can we quickly determine if this number exists among those 4 billion numbers? 1 billion is 9 zeros, so 4 billion is 4000000000. Our instinctive thought for a solution is to use a for loop to find the equal number, … Read more

How to Achieve Byte Swapping in Embedded Programming?

How to Achieve Byte Swapping in Embedded Programming?

Recently, I encountered the issue of byte endianness conversion in a protocol, so I lazily searched online and found a similar problem, and learned a new term called butterfly swapping. The problem is as follows: The protocol requires that the low byte is on the left and the high byte is on the right, and … Read more

Detailed Explanation of Bit Manipulation in C++

Detailed Explanation of Bit Manipulation in C++

Computers cannot understand the high-level languages we use. Therefore, to make computers understand, there is a standard method of converting given instructions into some numerical information called bits. The sequence of bits represents specific instructions. Bits A bit is defined as the basic unit of data storage in numeric form. It has two values, represented … Read more

Essential C Language Knowledge for Beginners

Essential C Language Knowledge for Beginners

Click the blue text Follow us Due to changes in WeChat public account push rules, please click “See” and add “Star” to get exciting technical shares immediately Source from the internet, please delete if infringing C language is essential foundational knowledge in microcontroller development. This article lists some common basic knowledge of C language in … Read more

How to Achieve Byte Endian Conversion in Embedded Programming?

How to Achieve Byte Endian Conversion in Embedded Programming?

Recently, I encountered a problem with byte endian conversion in a protocol, so I lazily went online to check it out and came across a similar issue, learning a new term called butterfly swapping. The Problem Is As Follows The protocol requires that the low byte is on the left and the high byte is … Read more